September weather forecast
Allaire, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Allaire, New Jersey, with an average temperature ranging between max 73.8°F (23.2°C) and min 64.2°F (17.9°C).

Temperature

With the onset of September, Allaire's climate undergoes a slight change as the average high-temperature moves from 79.7°F (26.5°C) in August to a still moderately hot 73.8°F (23.2°C). In the month of September, the average low-temperature usually rests at an enjoyable 64.2°F (17.9°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Allaire, New Jersey, during September, the rain falls for 11.9 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, in Allaire, there are 133.4 rainfall days, and 15.08" (383mm) of precipitation is accumulated.

Snowfall

In Allaire, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

In September, the average sunshine in Allaire is 9.1h.

UV index

The average daily maximum UV index in September in Allaire is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the temperature in September in Allaire?

In September, in Allaire, the average high-temperature is 73.8°F (23.2°C), and the average low-temperature is 64.2°F (17.9°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in September in Allaire?

In September, the average relative humidity in Allaire, New Jersey, is 77%.

How many days does it rain in September in Allaire?

In Allaire, New Jersey, in September, it is raining for 11.9 days, with typically 1.18" (30mm) of accumulated precipitation.

When it does not snow in Allaire?

April through October are months without snowfall in Allaire, New Jersey.

How many hours of daylight does Allaire have in September?

In Allaire, New Jersey, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Allaire?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

How many hours of sunshine does Allaire have in September?

The average sunshine duration in September in Allaire, New Jersey, is 9.1h.

What is the UV index intensity in September in Allaire?

The average daily maximum UV index in September in Allaire, New Jersey, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Allaire, NJ

Average temperature in September - Allaire, NJ
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in September
Allaire, NJ

Average pressure in September - Allaire, NJ
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Allaire, NJ

Average wind speed in September - Allaire, NJ
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in September
Allaire, NJ

Average humidity in September - Allaire, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March and November (74%).

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Average rainfall in September
Allaire, NJ

Average rainfall in September - Allaire, NJ
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in September
Allaire, NJ

Average rainfall days in September - Allaire, NJ
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is November (7.4 days).

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Average snowfall in September
Allaire, NJ

Average snowfall in September - Allaire, NJ
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Allaire, NJ

Average snowfall days in September - Allaire, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Allaire, NJ

Average daylight in September / Average sunshine in September - Allaire, NJ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Allaire, NJ

Average sunshine days in September - Allaire, NJ
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in September
Allaire, NJ

Average UV index in September - Allaire, NJ
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Allaire, NJ

Average cloud cover in September - Allaire, NJ
  • Average cloud cover in September: 33

The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Allaire, NJ

Average visibility in September - Allaire, NJ
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Allaire, New Jersey, USA

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